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Choosing equipment

How to Choose a Commercial Charbroiler

Radiant vs lava rock vs ceramic charbroilers, gas sizing, grease flare-ups, and hood duty explained so you buy the right broiler for your menu and volume.
Educational, not legal advice. Codes vary by jurisdiction — always confirm with your local health department and building authority (AHJ).
FoodServiceNerd EditorialResearched from the FDA Food Code, manufacturer specs & industry sourcesUpdated Aug 2026

What a charbroiler actually does

A commercial charbroiler puts food directly over an intense radiant heat source to produce those signature sear marks and a smoky, grilled char. It is not a griddle (flat, conductive heat) and not a range. If your menu leans on burgers, steaks, chicken, chops, or vegetables with visible grill marks, this is the piece you are shopping for. The big decisions are the heat medium (radiant, lava rock, or ceramic), fuel, width, and how it affects your ventilation.

Radiant vs lava rock vs ceramic

People search "radiant vs lava rock" and "charbroiler vs griddle" constantly, because the heat medium is the choice that shapes flavor, cleaning, and running cost. Radiant units use angled metal plates to spread burner heat evenly and channel grease away, so they recover fast and flare up less — the workhorse for high-volume lines. Lava rock and ceramic briquettes sit above the burners, soak up drippings, and throw more smoke and flavor, at the cost of more maintenance and more flare-ups.

TypeFlavor / smokeFlare-upsMaintenanceBest for
Radiant (metal)Clean, direct searLowEasy — wipe radiantsHigh-volume, consistent output
Lava rockHeaviest smokeHighReplace rocks ~every 1–2 yrsSteakhouse / smoky flavor
Ceramic briquetteSmoky, more even than rockMediumReusable, flip to self-cleanMiddle ground

Gas, sizing, and BTU

Most commercial charbroilers are gas (natural gas or propane); electric radiant models exist for spaces without gas. Plan on roughly 30,000–40,000 BTU per foot of cooking width. Widths run in 6-inch or 1-burner steps — common footprints are 24", 36", and 48", with countertop and floor (range-match) versions. Size to peak covers, not average: a busy burger line needs more grill real estate than a menu that only sears the occasional protein. Look for independent burner control per section so you can run a hot searing zone and a cooler holding zone at once.

Ventilation is not optional

A charbroiler is one of the greasiest, smokiest appliances in the kitchen, so it almost always requires a Type I (grease) hood. This is a code and life-safety issue, not a preference. Confirm your hood has the capacity before you buy, and factor make-up air into the plan. Use our hood CFM calculator to estimate exhaust, and see do I need a hood? if you are unsure. Local rules vary — check the requirements by area.

Tip: If flavor is your brand, lava rock or ceramic sells the concept — but budget the labor. If throughput and consistency matter more, radiant almost always wins on total cost of ownership. Many kitchens pair a charbroiler with a salamander or broiler for finishing.

Countertop vs floor, and fuel choice

Countertop charbroilers save floor space and sit on a stand or an equipment stand with storage; floor models line up with your range battery. On fuel, gas gives instant high heat and is the default; electric radiant is an option where gas is unavailable but draws serious amperage. Our gas vs electric guide covers the trade-offs. Whatever you pick, look for heavy cast-iron or stainless grates, a full-width grease trough, and a removable drip pan — those details decide how miserable the nightly clean-down is.

Frequently asked

What is the difference between a lava rock and a radiant charbroiler?
Lava rock charbroilers place porous stones above the burners; the rocks absorb drippings and produce heavier smoke and flavor but more flare-ups and more maintenance (rocks are typically replaced every one to two years). Radiant charbroilers use angled metal plates that spread heat evenly and drain grease, giving faster recovery, fewer flare-ups, and easier cleaning. Radiant is favored for high volume; lava rock for a smokier steakhouse-style char.
What is the difference between a charbroiler and a griddle?
A charbroiler cooks food on grates over an open radiant flame, leaving sear marks and a grilled, smoky char. A griddle is a solid flat plate that transfers heat by conduction for eggs, pancakes, and smash burgers. They are different tools; many lines carry both.
How many BTUs does a commercial charbroiler need?
Plan on roughly 30,000 to 40,000 BTU per foot of cooking width. A 24-inch unit runs around 70,000 to 80,000 BTU and a 36-inch unit well over 100,000 BTU. Size to your peak covers and choose independent burner sections so you can run hot and holding zones at once.
Does a commercial charbroiler need a hood?
Almost always yes. Charbroilers produce heavy grease-laden smoke, so they typically require a Type I grease hood under most codes. Confirm hood capacity and make-up air before buying, and check your local requirements, since rules vary by jurisdiction.
What size charbroiler do I need for a restaurant?
Match cooking width to peak-service demand, not daily average. Common sizes are 24, 36, and 48 inches. A high-volume burger or steak line needs more grate area and independent zones; a menu that only occasionally sears can run a smaller countertop unit.

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